561110471 has 4 divisors (see below), whose sum is σ = 561270744. Its totient is φ = 560950200.

The previous prime is 561110467. The next prime is 561110477. The reversal of 561110471 is 174011165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561110471 - 2² = 561110467 is a prime.

It is a super-3 number, since 3×561110471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561110471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561110477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74765 + ... + 81926.

It is an arithmetic number, because the mean of its divisors is an integer number (140317686).

Almost surely, 2^561110471 is an apocalyptic number.

561110471 is a deficient number, since it is larger than the sum of its proper divisors (160273).

561110471 is a wasteful number, since it uses less digits than its factorization.

561110471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160272.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 561110471 is about 23687.7704944978. The cubic root of 561110471 is about 824.8015297295.

The spelling of 561110471 in words is "five hundred sixty-one million, one hundred ten thousand, four hundred seventy-one".